In this work, an alternative technology to extend wireless coverage beyond the conventional methods of providing radio propagation coverage is presented. The use of a radiating cable is proposed for difficult-to-reach areas. In this regard, an indoor radiating cable is successfully employed for the distribution of an analog electric signal in a fiber-radio scheme using a microwave photonic filter. A filtered microwave band-pass window located at 2.24 GHz is used as an electrical carrier to transmit an analog TV-signal of 67.25 MHz over an optical link of 25.28 km. Measurements are carried out in an indoor environment. Experimental results demonstrate that the recovered signal is of good quality in each measurement location, exhibiting on average a signal-to-noise-ratio (SNR) of around 31.60 dB.

中文翻译：

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编码为2.24 GHz的模拟电视信号的光传输及其通过辐射电缆的分配

在这项工作中，提出了一种替代技术，以将无线覆盖范围扩展到提供无线传播覆盖范围的常规方法之外。建议在难以触及的区域使用辐射电缆。在这方面，室内辐射电缆被成功地用于使用微波光子滤波器的光纤无线电方案中的模拟电信号的分配。位于2.24 GHz处的经过滤波的微波带通窗口被用作电载体，以通过25.28 km的光链路传输67.25 MHz的模拟电视信号。测量在室内环境中进行。实验结果表明，所恢复的信号在每个测量位置均具有良好的质量，平均显示出约31.60 dB的信噪比（SNR）。